Attachment for thimbles.



J. T. OHMAN.

ATTACHMENT FOB. THIMBLBS.

nrmouron num JULY 2a, 1910.

993,709. Patented May 3o, 1911.

a'Z/zegnses C), 277.?5-/27/27072;

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JOHN T. OI-IMAN, F WORCESTER, MASSACHUSETTS.

'ATTACHMENT FOR THIMBLES.

Specification of Letters Patent.

Patented May 30, 1911.

Application led July 23, 1910. Serial No. 573,522.

To all whom it may cof/warn.'

Be it known that I, JOHN T. OHMAN, a citizen of the United States,residing at Worcester, -in the county of Worcester and State ofMassachusetts, have invented a new and useful Attachment for Thimbles,of which the following is a specification.

This invention relates to an attachment for thimbles for cutting threadand pulling needles.

The principal objects of the invention are to provide a simplified formof device for this purpose which can be made out of a single blank ofsheet metal, and this will consist of a single part only; and to providea more convenient and simple construction (fif needle puller than hasbeen done heretoore.

The invention also involves improvements in details of construction aswill appear hereinafter.

Reference is to be had to the accompanying drawings in which- Figure 1is a side view of a thimble with one form of the invention appliedthereto. Fig. 2 is an edge view of the attachment and thimble. Fig. 3 isa view of the side opposite to that shown in Fig. 1. Fig. l is a plan ofa blank from which the attachment can be made, and Fig. 5 is a side viewof a thimble showing a modification of the attachment.

In the form of the invention shown in the first four figures, thethimble A is provided with a removable ring for clip 10 having integralhooks 11 at the edges adapted to be bent over the edge of the thimble soas to secure the attachment thereto. With this ring is integrallyconnected a base 12 which is turned up at right angles to form asidepiece. The side iece has an inclined slot 14: having a slantingcutting edge 15. The side 13 also has a turned down end 16 spaced fromthe side 13 to form a guide for a sliding part 17 which is integral withan extension 18 projecting from the opposite side of the ring. Theforward inclined edge 19 of the part 17 is a cutting edge and is adaptedto come into cutting coperation with the edge 15 when the blade 17 ispushed forward. This can be accomplished by pressing down on abow-shaped projection 20 on the extension 18. The base 12 also isprovided with a turned over end 21 which has a perforation 22 just atthe bend. This perforation is for the purpose of admitting a needle asshown in dotted lines in Fig. 1. It has been found in practice that theadmission of a needle from the side is somewhat inconvenient andconsequently this arrangement has been provided to permit the needle tobe inserted from the end. After being inserted, the end 21 is presseddown to hold the needle for the purpose of gripping it so that it can bepulled as will be understood. A needle attachment constructed in thisway can be made of a single blank B of sheet metal of the form shown inFig. f1 in which the parts 10al1- 12- 13- 15"- 1G F-17-18- 19a-- and 21Lare bent up in one way or another to form the arts having thecorrespending numbers in igs. 1, 2 and 3. Thus it will be seen thatthese parts are all integral.

In the form shown in Fig. 5, the needle puller is shown as applied to anattachment C of a different character which has an inward bend 24 forgripping the needle. A perforation is provided in the center of the backbend 23 as in the other case and acts in the same way.

In both forms the hooks 11 are used to hold the attachment on whilepulling the needle. At this time the action of the operator in pressingon the spring to grip the needle has the effect of holding the hooksfirmly on the thimble so that the attachment will not be pulled off.

While I have illustrated and described two forms of the invention, I amaware that many other modifications can be made therein by any personskilled in the art without departing from the scope of the invention asexpressed in the claims. Therefore,

'I do not wish to be limited to all the details of construction shownand described, but

What I do claim is 1. As an article of manufacture, an attachment forthimbles, comprising a reversely bent member located near the top of thethimble and having means whereby a needle can be admitted longitudinallyto be gripped by the bent member, a fixed knife blade, and alongitudinally movable knife blade adapted to coperate therewith.

2. As an article of manufacture, an attachment for thimbles comprising abase adapted to be supported along the side of the thimble and havingmeans at the end near the top of the thimble for gripping a needle, ablade projectingY therefrom, and a movable blade adapted to coopera-tetherewith.

3. As an article of manufacture, an attachment for thimbles, comprisinga base adapted to be located along the side of a thimble, a pieceprojecting atlright-angles therefrom and having a cutting edge, and asecond piece resiliently connected therewith rand having a movablecutting edge adaptf ed to coperate with the first named cutting edge.

4. As an article of manufacture, an attachment for thimbles, comprisinga body adapted. to lie along the surface of a thimble having an integralmember projecting ysubstantially at right-angles therefrom and 'end ofsaid body, and a blade integrally having a slot therein at aninclination, one edge of said slot being a cutting edge, a resilientprojection extending from the other mounted on said j extension andadapted to move along the surface of said member and to cooperate withthe said cutting edge;

5. As an article of manufacture, an atvtachment for` thimbles,comprising a body with the said cutting edge, said member having anoverlapping projection constituting a guide for said blade. x

6. As an article of manufacture, an attachment for thimbles comprising abase adapted to be supported along the side of the thimble, and havingintegral means at the end near the top of the thimble for gripping aneedle, anintegral blade projecting therefrom, an integral movable bladeadapted to coperate therewith, and a ring connected with said piece andadapted to extend part way around the thimble and provided with hooksthereon for securing it to the thimble.

7. As an article of manufacture, an at tachment for thimbles comprisinga base adapted to be supported along the side of the thimble, and havingmeans at the end near the top of the thimble for gripping aneedle, ablade projectingtherefrom, a movable blade adapted to cooperatetherewith, and a ring integral with said piece and adapted to Aextendpart way around the thimble and provided with hooks thereon for securingit to the thimble.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing witnesses.

JOHN T. OHMAN.

Witnesses:

E. M. ALLEN, A. E. FAY.

Copies of this patent may be obtained for ve cents each, bykaddressingthe Commissioner of Patents,

' Washington, D. C.

